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authorThomas Gleixner <tglx@linutronix.de>2015-08-01 07:06:58 +0000
committerVinod Koul <vinod.koul@intel.com>2015-08-06 08:30:57 +0530
commit3d8cc00073d6750ffe883685e49b2e4a0f596370 (patch)
treee919602f617ebfbf079d373408e7aefe23674ccd /drivers/dma/ipu
parent425e20fd08a53ad06c562960d594505813c7910c (diff)
downloadlinux-3d8cc00073d6750ffe883685e49b2e4a0f596370.tar.bz2
dmaengine: ipu: Consolidate duplicated irq handlers
The functions irq_irq_err and ipu_irq_fn are identical plus/minus the comments. Remove one. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: dmaengine@vger.kernel.org Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/ipu')
-rw-r--r--drivers/dma/ipu/ipu_irq.c46
1 files changed, 4 insertions, 42 deletions
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index 9f95940d3fe2..fc6506b12278 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -265,8 +265,8 @@ int ipu_irq_unmap(unsigned int source)
return ret;
}
-/* Chained IRQ handler for IPU error interrupt */
-static void ipu_irq_err(unsigned int __irq, struct irq_desc *desc)
+/* Chained IRQ handler for IPU function and error interrupt */
+static void ipu_irq_handler(unsigned int __irq, struct irq_desc *desc)
{
struct ipu *ipu = irq_desc_get_handler_data(desc);
u32 status;
@@ -307,44 +307,6 @@ static void ipu_irq_err(unsigned int __irq, struct irq_desc *desc)
}
}
-/* Chained IRQ handler for IPU function interrupt */
-static void ipu_irq_fn(unsigned int __irq, struct irq_desc *desc)
-{
- struct ipu *ipu = irq_desc_get_handler_data(desc);
- u32 status;
- int i, line;
-
- for (i = 0; i < IPU_IRQ_NR_FN_BANKS; i++) {
- struct ipu_irq_bank *bank = irq_bank + i;
-
- raw_spin_lock(&bank_lock);
- status = ipu_read_reg(ipu, bank->status);
- /* Not clearing all interrupts, see above */
- status &= ipu_read_reg(ipu, bank->control);
- raw_spin_unlock(&bank_lock);
- while ((line = ffs(status))) {
- struct ipu_irq_map *map;
- unsigned int irq;
-
- line--;
- status &= ~(1UL << line);
-
- raw_spin_lock(&bank_lock);
- map = src2map(32 * i + line);
- if (map)
- irq = map->irq;
- raw_spin_unlock(&bank_lock);
-
- if (!map) {
- pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
- line, i);
- continue;
- }
- generic_handle_irq(irq);
- }
- }
-}
-
static struct irq_chip ipu_irq_chip = {
.name = "ipu_irq",
.irq_ack = ipu_irq_ack,
@@ -384,9 +346,9 @@ int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
#endif
}
- irq_set_chained_handler_and_data(ipu->irq_fn, ipu_irq_fn, ipu);
+ irq_set_chained_handler_and_data(ipu->irq_fn, ipu_irq_handler, ipu);
- irq_set_chained_handler_and_data(ipu->irq_err, ipu_irq_err, ipu);
+ irq_set_chained_handler_and_data(ipu->irq_err, ipu_irq_handler, ipu);
ipu->irq_base = irq_base;